Vaporizer



(No Model.)

G. M. SHERMAN.

VAPORIZER.

Patented July 22, 1890.

UNITED f STATES ATENT FFICE.

' GARDNERv M. SHERMAN, OF SPRINGFIELD, MASSACHUSETTS.

VAPORIZER.

SPECIFICATION forming part of Letters Patent No. 432,842, dated July 22, 1890.

Application filed November 29, 1889- Serial No. 332,008- (No model.)

To all whom it may concern:

Beitknown that I, GARDNER M. SHERMAN, a citizen of the United States, residing at Springfield, in the county of l-Iampden and State of Massachusetts, have invented new and useful Improvements in Vaporizers, of which the following is a specification.

This invention relates to vaporizers for the atmospheric dissemination of liquid disinfectants, perfumes, or other volatile matter, the object of the invention being to provide a vaporizer of the class indicated of impnoved construction and increased efficiency; and the invention consists in the construction, combination, and arrangement of parts, all substantially as will hereinafter more fully appear, and be set forth in the claims.

Reference is to be had to the drawings accompanying and forming partof this specification, in which similarlettcrs of reference indicate corresponding parts in all the views, and in which- Figure 1 is a central vertical longitudinal sectional view of my improved vaporizer. Fig. 2 is a vertical cross-section of the same, taken on the plane indicated by the line a: ac, Fig. 1. Fig. 3 is a perspective view of the cast or absorbent body comprised in and forming a part of the vaporizing apparatus; and Fig. 4 is a sectional view illustrative of a slight modification of construction of the vaporizer-case, to be hereinafter referred to.

The vaporizer-case, as shown, consists of shell A, of a general cylindrical form, having a depression, pocket, or basin a formed in its under side, which is open to the interior of said shell,and heads of closing-lids B at each end. The said body and heads are to be formed of glass or metal, as desired, the material to be selected having proper non-corrosive qualities to resist the action of the volatile matter'to be disseminated by the use,

of the apparatus. As shown in Fig. 1, the extremities of the body A are screw-threaded, receiving the engagementthereon and therewith of the threads of the heads B. Thorim or flange 1) of each head in which the screw threads are formed, as just above noted, is provided with perforations (l (1, so disposed on the said flange relative to the axial ex tent thereof that when the head isscrewed entirely on the portion of the body adapted to receive it said perforations will overlie the circular wall of the shell extremity; but when the head is unscrewed more or less the perforations or portions of the area thereof will lie outside of the plane, which is coincident with the eno of the shell, and thereby a current of air may enter and issue from the shell through the perforations, in accordance with the wellknown principles of atmospheric circulation.

c 0 represents disks of compressible mate rial adapted to form effective packing between the ends of the shell and the inner face of the heads, when the latter are turned up to place the perforations (Z (Z within the ends of the shell.

Transverse ribs d d are formed in the pocket or basin a, on which is supported a padD, of porous and absorbent materialsuch as felt, wool, sponge, or similar material, or combination of such materialsand on said porous and absorbent pad is supported a cast or body 0, of a generally cylindrical form, composed of plasterof-paris, although other porous and absorbent material may be substituted therefor. This cast or body 0 is of a length preferably considerably less than that of the shell A, whereby spaces may be ribs and grooves covering, say, about threefourths of the pcrimeterof the cast, the lower portion thereof being, however, of an even and continuous surface, as indicated at i, to afford a broad and unbroken surface to rest upon the top of the pad D, and the cast istgo also provided with longitudinal bores or passages extending entirely through it.

A spout Z is shown as extending from the eXteriorof the shell in a downward direction,

communicating with the interior of said 95,

pocket or basin a, through which spout the liquid disinfectant or perfume is to be entered, and a removable cap 7c is to be provided for closing the orifice of said spout. In order that the ribs may in no way interfere with the liquid finding a common level and distribution over the entire area of the pocket or basin 0;, the ribs are provided with gaps in their length, or apertures or perforations on through them, as shown. 7

In the use and operation of the vaporizing apparatus described, which is usually placed on the floor or in some low place in the apartment, the liquid disinfectant or perfume is poured into the basin to a height to be taken up by the pad, which soon becomes thoroughly saturated, and the cast then absorbs and becomes saturated with the liquid, the same being capable of taking up as much of the liquid as will more than equal the weight of the cast. permit the passage of air into the casing, the air, entering certain of the perforations, circulates through the passages in the cast, and also in the longitudinal grooves between the ribs, coming into contact with alarge surface area of the saturated cast, and the air becoming impregnated with the atomized or vaporized disinfectant issues from the shell and is disseminated throughout the room. The porous pad, acting as a ready absorbent for the disinfecting. acid or other volatile matter, also serves as a strainer or filter, whereby the impurities and sediment which may exist in the said liquid are intercepted by the said pad, which would otherwise be taken up by the cast, the cast thereby becoming clogged or congested.

In lieu of the means hereinabove described for opening and shutting off the passages for the entrance and egress of air to and from the interior of the casing, the walls at the end portion of the casing may be provided with apertures overlaid by a movable disk or band t, which in turn has a series of apertures adapted to register and to be put out of coincidence with the apertures in said head, such acoustruction being illustrated in Fig. 4.

When it is deemed that a suificient dissemination of the liquid in atomized. form has ensued, the casing is entirely closed, when the liquid in the chamberduring whatever time of disuse of the vaporizer there may beis practically preserved against evaporation.

Another application for Letters Patent of the United States for improvement in vaporizers filed by me simultaneously with this application, under Serial No. 332,009, em-

The heads being adjusted to bodies a description andillustration of certain subject-matter which is hereinafter claimed; but said other application relates to independent improvementswhich are applicable to the class of Vaporizers to which this invention appertains.

What I claim as my invention is 1. In a vaporizer, the combination, with a casing adapted to contain in its bottom a quantity of the liquid to be vaporized and having air inlet and exit openings at its opposite end portions, of a-filter-pad of absorbent material resting over and near said bottom and adapted to be partially immersed in the liquid therein, and a cast of porous and absorbent material resting on said pad, substantially as and for the purpose set forth.

2. In a vaporizer, the combination, with the casing adapted to contain in its bottom a quantity of the liquid to be vaporized and having inlet and exit openings at its opposite end portions, of a porous and absorbent cast having longitudinal circulation ways or passages through same and adapted to be supported in said casing and to be in absorptive communication with the liquid in said casing, substantially as and for the purpose set forth;

3. In avaporizer, the combination, with the cylindrical casing having air inlet and exit openings in,its opposite end portions and provided in its bottom with a basin or pocket adapted to contain a quantity of the liquid to be vaporized, and which has formed therein the supporting-ribs and is provided with the spout entering said basin, of a filter-pad. of absorbent material supported on said ribs, and a cast of porous and absorbent material resting on said pad, substantially as and for the purpose set forth.

4. In a vaporizer, the combination, with a casing provided in its bottom with a basin or pocket to contain a quantity of the liquid to be vaporized and having closed end Walls, said casing being provided in or near its ends with inlet and exit openings and means for closing same when desired, of a filter-pad of absorbent material supported over and to be partially immersed in the liquid in said basin, and a cast of porous and absorbent material resting on said pad, substantially as and for the purpose set forth.

GARDNER M. SHERMAN.

WVitnesses:

'WM. S. BELLoWs, J. D. GARFIELD. 

